Home / 739,945.20-1,109,917.80-341,364.45

Finding the Fourth Proportional to 739,945.20, 1,109,917.80 and 341,364.45

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Solution

The fourth proportional to 739,945.20, 1,109,917.80 and 341,364.45 is: 512,046.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,945.20 : 1,109,917.80 = 341,364.45 : x
  2. Step 2: Convert to fraction form
    739,945.20/1,109,917.80 = 341,364.45/x
  3. Step 3: Cross multiply
    739,945.20x = 1,109,917.80 × 341,364.45
  4. Step 4: Simplify right side
    739,945.20x = 378,886,479,342.21
  5. Step 5: Solve for x
    x = 378,886,479,342.21/739,945.20
  6. Step 6: Final answer
    x = 512,046.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.